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Updated: Jul 8, 2026
08:23
A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy
Published on: November 13, 2016
11.2K
[Electroencephalography and connectivity in delirium].
Tijdschrift Voor Psychiatrie
|January 4, 2024
Summary
Delirium alters brain activity, showing increased slow waves and decreased alpha waves on quantitative EEG (qEEG). This study reviews how qEEG reveals reduced brain connectivity and efficiency in delirium patients.
Area of Science:
- Neuroscience
- Electroencephalography
Context:
- Delirium is a common and serious condition associated with significant neurophysiological changes.
- Quantitative EEG (qEEG) analysis offers objective measures of these brain alterations.
Purpose:
- To synthesize findings from studies investigating neurophysiological changes in delirium using qEEG.
- To highlight characteristic qEEG patterns associated with delirium.
Summary:
- Delirium is characterized by diffuse slowing of the electroencephalogram (EEG), marked by increased delta and theta activity.
- A decrease in alpha frequency band activity, reduced functional connectivity, and impaired brain network efficiency are observed in delirium.
- These qEEG findings indicate widespread disruption of brain function.
Impact:
- qEEG analysis provides valuable insights into the pathophysiology of delirium.
- Identifying specific neurophysiological deficits may pave the way for targeted therapeutic interventions.
- Improving functional connectivity is proposed as a potential novel treatment strategy for delirium.
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